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读写文本

Posted on 2017-08-04 22:13  清浅ヾ  阅读(131)  评论(0)  编辑  收藏  举报 
  1 using System;
  2 using System.Collections.Generic;
  3 using System.Configuration;
  4 using System.IO;
  5 using System.Linq;
  6 using System.Text;
  7 using System.Text.RegularExpressions;
  8 using System.Threading.Tasks;
  9 
 10 namespace MessageText
 11 {
 12     class FileMessage
 13     {
 14         /// <summary>
 15         /// 将信息写入文本中
 16         /// </summary>
 17         /// <param name="AppSettingName"></param>
 18         /// <param name="title"></param>
 19         /// <param name="page"></param>
 20         public static void Write(string path,string title,string text,char i)
 21         {
 22             if (path != null && path != "")
 23             {
 24                 if (!(Directory.Exists(path)))
 25                 {
 26                     Directory.CreateDirectory(path); //创建日志文件夹
 27                 }
 28                 path += string.Format(@"\\{0}.txt", title);
 29 
 30                 using (var sw = new StreamWriter(path, true, Encoding.Default))
 31                 {
 32                     sw.Write(text + i);
 33                 }
 34             }
 35         }
 36 
 37         /// <summary>
 38         /// 读取文本信息，若无此文本则创建并返回null
 39         /// </summary>
 40         /// <param name="path"></param>
 41         /// <param name="title"></param>
 42         /// <returns></returns>
 43         public static string Read(string path, string title)
 44         {
 45             string text =null;
 46             if (path != null && path != "")
 47             {
 48                 if (!Directory.Exists(path)) 
 49                 {
 50                     Directory.CreateDirectory(path);
 51                 }
 52                 path += string.Format(@"\\{0}.txt", title);
 53 
 54                 using (var stream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Read))
 55                 {
 56                     var sr = new StreamReader(stream, Encoding.Default);
 57                     string str = Regex.Replace(sr.ReadToEnd(), @"\s+", "");
 58                     if (str == "") return null;
 59                     else text = str;
 60                     sr.Close();
 61                 }
 62             }
 63             return text;
 64         }
 65 
 66         /// <summary>
 67         /// 读取文本信息并分割为数组，若无此文本则创建并返回null
 68         /// </summary>
 69         /// <param name="path"></param>
 70         /// <param name="title"></param>
 71         /// <returns></returns>
 72         public static string[] Read(string path, string title,char i)
 73         {
 74             string[] text = null;
 75             if (path != null && path != "")
 76             {
 77                 if (!Directory.Exists(path))
 78                 {
 79                     Directory.CreateDirectory(path);
 80                 }                    
 81                 path += string.Format(@"\\{0}.txt", title);
 82 
 83                 using (var stream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Read))
 84                 {
 85                     var sr = new StreamReader(stream, Encoding.Default);
 86                     string str = Regex.Replace(sr.ReadToEnd(), @"\s+", "");
 87                     if (str != "") text = str.Split(i);
 88                     sr.Close();
 89                 }
 90             }
 91             return text;
 92         }
 93 
 94         /// <summary>
 95         /// 读取文本信息并返回，如果没有该文本则返回null，不会创建文本
 96         /// </summary>
 97         /// <param name="AppSettingName"></param>
 98         /// <param name="title"></param>
 99         /// <returns></returns>
100         public static string ReadText(string path,string title)
101         {
102             string text = null;
103             if (path != null && path != "")
104             {
105                 if(!(Directory.Exists(path)))
106                 {
107                     Directory.CreateDirectory(path); //创建日志文件夹
108                 }
109                 path += string.Format(@"\\{0}.txt", title);
110 
111                 if (!(File.Exists(path))) return null;
112 
113                 using (var sr = new StreamReader(path, Encoding.Default))
114                 {
115                     text = Regex.Replace(sr.ReadToEnd(), @"\s+", "");
116                 }
117             }
118             return text;
119         }
120 
121         /// <summary>
122         /// 读取文本信息分割为字符串数组并返回，如果没有该文本则返回null，不会创建文本
123         /// </summary>
124         /// <param name="AppSettingName"></param>
125         /// <param name="title"></param>
126         /// <returns></returns>
127         public static string[] ReadText(string path, string title,char i)
128         {
129             string[] text = null;
130             if (path != null && path != "")
131             {
132                 if (!(Directory.Exists(path)))
133                 {
134                     Directory.CreateDirectory(path); //创建日志文件夹
135                 }
136                 path += string.Format(@"\\{0}.txt", title);
137 
138                 if (!(File.Exists(path))) return null;
139 
140                 using (var sr = new StreamReader(path, Encoding.Default))
141                 {
142                     string str = Regex.Replace(sr.ReadToEnd(), @"\s+", "");
143                     if (str != "") text = str.Split(i);
144                 }
145             }
146             return text;
147         }
148 
149         /// <summary>
150         /// 读取末尾页数，若无结果则返回0
151         /// </summary>
152         /// <param name="AppSettingName"></param>
153         /// <param name="title"></param>
154         /// <param name="i"></param>
155         /// <returns></returns>
156         public static int ReadPage(string path, string title, char i)
157         {
158             int page = 0;
159             string[] pageNum = null;
160             if (path != null && path != "")
161             {
162                 if (!(Directory.Exists(path))) Directory.CreateDirectory(path); //创建日志文件夹
163 
164                 path += string.Format(@"\\{0}.txt", title);
165 
166                 using (var fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Read))
167                 {
168                     StreamReader sr = new StreamReader(fs, Encoding.Default);
169                     string str = Regex.Replace(sr.ReadToEnd(), @"\s+", "");
170                     if (str != "") pageNum = str.Split(i);
171 
172                     if (pageNum != null)
173                     {
174                         page = Convert.ToInt32(pageNum[pageNum.Length - 2]);
175                     }
176                     sr.Close();
177                 }
178             }
179             return page;
180         }
181 
182        
183     }
184 }